Question # 1

Which one is not the fraction of residual oil?

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Paraffin wax

Asphalt

Fuel oil

Coke

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

Which one of the not metal.

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Copper

Carbon

chromium

Iron

Formula of Urea is.

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KCNO

H₂N-CO-NH₂

HN-CO₂-NH

H₃N-CO-NH₃

The number of carbon atoms present in petroleum ether.

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1-5

2-5

3-7

5-7

Metallurgy involves which of the following steps?

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Mining and enrichment

Reduction

Refining and casting.

All of these

the chemical formula of chalcopyrite is:

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Cu₂S

CuFe₂S

CuS

FeS

Catalyst used in Haber's process is:

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Ni

Fe

Cu

Zn

Matte is a mixture of:

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FeS and CuS

Cu₂O and FeO

Cu₂S and FeS

CuS and FeO

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Chemistry 10th Class English Medium Unit 16 Online Test MCQs With Answers

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